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Biology Module 5 > Energy > Flashcards

Energy Flashcards

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AP® Biology flashcards Biology 101 flashcards
1
Q

What 7 things must a living organism have?

A

Movement
Respiration
Sensitivity

Growth
Reproduction
Excretion
Nutrition

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2
Q

What is a catabolic reaction?

A

Breakdown of molecules

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3
Q

What is an anabolic reaction?

A

Build up of polymers

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4
Q

What is the conservation of energy?

A

Energy cannot be created or destroyed

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5
Q

What is the equation for respiration?

A

Glucose + oxygen > carbon dioxide + water

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6
Q

Name 2 properties of respiration

A

Heterotrophic
Exothermic

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7
Q

What is the equation for photosynthesis?

A

Water + oxygen > glucose + carbon dioxide

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8
Q

Name some properties of photosynthesis

A

Autotrophic
Endothermic

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9
Q

What does autotrophic mean?

A

Makes own food

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10
Q

What does heterotrophic mean?

A

Energy made by eating other organisms

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11
Q

Is photosynthesis endo or exothermic?

A

Endothermic

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12
Q

How does ATP work in plants?

A

Photosynthesis turns lights energy into ATP to create glucose

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13
Q

How does ATP work in animals?

A

Respiration breaks down glucose to produce ATP to be usedbin metabolic reactions

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14
Q

What are excited electrons?

A

Electrons woth a higher energy level

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15
Q

How do excited electrons work in plants?

A

Whem chlorophyll absorb light energy

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16
Q

How do excited electrons work in animals?

A

Help break down glucose

17
Q

Where do excited electrons move to?

A

Electron transport chain

18
Q

What are electron transport chains?

A

Membrane carriers

19
Q

How is a high proton concentration balanced?

A

Reaction of ADP and Pi to form ATP with the help of the enzyme ATP synthase allowing protons to live down the channel proteins

20
Q

Outline the features of thylakoids

A

Flattened sacs of membranes stacked to make grana connected by membrane channels called lamellae

21
Q

What is stroma?

A

Fluid found in chloroplasts

22
Q

What are the 5 photosynthetic pigments?

A

Chlorophyll
Xanthopyll
Carotene
Anthocyanin
Tannis

23
Q

What is the primary pigment and what wavelengths does it absorb and reflects?

A

Chlorophyll A
Absorbs blue and reflects green

24
Q

Where does photosynthesis actually occur?

A

Reaction centre

25
Q

Define a photosystem

A

Energy is transferred to the reaction centre

26
Q

What is the equation for Rf value?

A

Distance travelled by component ÷ distance travelled by solvent

27
Q

What are the differences between photosystem 1 and 2?

A

1 absorbs light at 700nm

2 absorbs light at 680nm and has enzymes which break down water

28
Q

What happens during the light dependant stage of photosynthesis?

A

Sunlight forms ATP and hydrogen from water break down enzyme NaDP

29
Q

What happens during the light independent stage of photosynthesis?

A

Hydrogen and CO2 build organix molecules and ATP is used as energy

Biology Module 5 (6 decks)

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